Vermont Gage 1.3071 Plus Class Zz Plus Plug Gage 1.3071 in

Product Description

The VERMONT GAGE 1.3071 PLUS is a Class ZZ Plus plug gage used to verify bore diameters in precision inspection and quality control work. It checks whether a machined hole or bore meets dimensional tolerance by providing a Go/No-Go or single-end reference at 1.3071 inches. Class ZZ Plus gages are manufactured to tighter tolerances than standard Class ZZ tools, making them suitable for applications where measurement accuracy is critical. The gage member is sold without a handle, which must be sourced separately and matched to the appropriate diameter range.

This plug gage is used in machine shops, manufacturing facilities, and maintenance environments where bore sizing must be confirmed to tight specifications. Typical applications include inspection of drilled, reamed, or bored holes in metal components. It is handled by machinists, quality control technicians, and tool room personnel working to ASME or similar dimensional standards. The 1.3071-inch diameter makes it appropriate for mid-range bore inspection tasks in both production and bench inspection settings.

Key Features

• Class ZZ Plus tolerance class for tighter accuracy than standard Class ZZ gages
• Nominal measurement diameter of 1.3071 inches
• Single gage member design — handle sold separately
• Suited for Go/No-Go inspection setups when paired with appropriate handle and opposing member
• Lightweight construction for easy bench or in-process use

Compatibility

Designed as a replacement or supplemental gage member for standard plug gage handle systems accepting the 1.3071-inch diameter range. Handle must be purchased separately and sized to match this gage member diameter.

Installation Notes

Plug gages are installed and used by machinists and quality control technicians — no specialized trade license is required, but familiarity with dimensional inspection practices is expected. Before use, ensure the gage and bore are clean and free of chips, coolant, or debris that could affect measurement accuracy. Do not force the gage member into a bore; excessive force can damage the gage surface or the workpiece. Store in a protective case away from impact and temperature extremes to maintain calibration integrity.